Mechanical Commissioning Lead for Mission Critical Centers

Clear.; Dublin; On-site; EUR 120,000 - 180,000; Full time

Job summary

Clear. is seeking a Senior Mechanical Commissioning Manager to lead global commissioning activities for large-scale data centre projects.

The role focuses on developing standardised strategies from planning through handover, acting as a subject matter expert for critical mechanical systems, and ensuring design intent aligns with operations. The position requires 10+ years in mechanical commissioning/engineering in complex infrastructure, with strong data centre experience and PM capabilities.

Qualifications

• Degree in Mechanical Engineering or similar preferred.
• 10+ years’ experience in mechanical commissioning and/or engineering within complex infrastructure environments.
• Strong background in data centres or mission-critical facilities highly desirable.
• Strong understanding of HVAC, cooling, chilled water and critical mechanical systems.
• Experience leading commissioning teams in a matrix or multi-stakeholder environment.
• Project management experience or certification (or equivalent practical experience).

Responsibilities

• Lead and support global mechanical commissioning activities across multiple live projects.
• Develop and implement standardised mechanical commissioning strategies from planning through to handover (L0–L6).
• Act as subject matter expert across mechanical systems within mission-critical environments.
• Ensure alignment of mechanical design intent with operational performance requirements.
• Oversee commissioning of critical mechanical plant and equipment including HVAC, cooling, chilled water, pumps, CRAH/CRAC units and associated systems.
• Drive commissioning planning, scheduling, sequencing, and tag management.
• Lead technical validation workshops and system completion planning sessions.
• Ensure strict adherence to safety systems including PTW, SSOW, and LOTO.
• Manage OFCI / CFCI vendor and contractor interfaces across complex delivery environments.
• Develop and review commissioning documentation, test scripts, method statements, and procedures.
• Oversee equipment start-up, pre-functional checks, functional testing, performance testing, and integrated systems testing.
• Manage punch lists, defect resolution, and structured close-out processes.
• Support QA/QC teams to ensure quality-led commissioning delivery and minimal rework.
• Drive data-led decision making using completion and commissioning tracking systems.
• Identify and mitigate risks across mechanical commissioning execution and system handover.
• Provide leadership to commissioning teams and underperforming stakeholders where required.

Skills

Mechanical commissioning

Leadership

HVAC systems

Data centres

Project management

Education

Degree in Mechanical Engineering

Job description

Clear. is seeking a Senior Mechanical Commissioning Manager to lead global commissioning activities for large-scale data centre projects.

The role focuses on developing standardised strategies from planning through handover, acting as a subject matter expert for critical mechanical systems, and ensuring design intent aligns with operations. The position requires 10+ years in mechanical commissioning/engineering in complex infrastructure, with strong data centre experience and PM capabilities.